Power-transmission mechanism.



0.. KILROY. POWER TRANSMISSION MECHANISM.

APPLICATION FILED HOV. 21, 1908 Patented Nov. 23, 1909\ gm aasa 2SHEBTS-SHEBT 1.

,, avmemkoz I IIHHHHIIHHHHIIIIIIHHNIII Iillllill II I Wit eag e;

L KILROY.

EB. TRANSMISSION M EUHANISM,

LIOATION FILED NOV. 21, 190B.

APP

Patenteue. E30 1 2 SZIBETE-SHEET way of the ends thereof in a. line parallel with the shaft 15, as indicated by the numeral 34, and from this latter point to the major end of the head at an angle to the said shaft as indicated by the numeral 35 so that the grooves serve in effect as cams. Each of the heads 15 is formed beyond its minor end with a peripheral groove collar extension 36 designed for the engagement of an element which is operable to shift the head upon the shaft, and it will be understood that as the heads are shifted in a direction away from the respective disks 24, the transverse pins 33 of the arms will ride up in the angularly extending portions 33 of the grooves in the head and will in this manner be moved in a direction radially away from the shaft 15. In order that this movement of the arms 30, which movement is upon their pivots 28, may act to force the friction shoes 27 radially and into frictional contact with the inner surfaces of the respective flanges 21 or 23, an arm 37 is pivoted to each of the arms 30 and is loosely engaged at its outer end through an ear 38 formed upon'the corresponding stem 26 adjacent the outer end thereof, there being a nut' 39 engaged upon the said outer end of each arm 37 so as to prevent its disengagement from the said car 38.

Each of the arms 37 is provided adjacent its inner end with an adjustable nut 40 and engaged upon each arm and bearing at one end against this collar and at the other end against the car 38 is a spring 41 which has a tendency to normally force the friction shoes 27 and their stems 26 outwardly.

radially from the shaft l5 and with the friction surfaces of the shoes contacting with the corresponding and heretofore mentioned Surfaces of the corresponding flanges 21 or 23.

It will of course be understood that movement of the heads 31 in the direction of the disks 24 will result in the outer ends of the arms 30 moving radially imvardly toward the shaft 15 as a common center and that this movement of the said arms will result in a pull being exerted upon the arms 37 to shift the friction shoe :7 in a corresponding direction and out of 'l'rirtional contact With the friction surfaces of the cr'n'respomling flanges 21 or 23.

()ne of the bearings 16 is formed with an integral frame 42 which has at its end opposite the said bearing, a hearing 43 upon the shaft 15, the frame being however rigidly supported by the suid hearing 16. Journaled for rotation upon this frame 42 at a point substantially midway of the ends thereof is a worm gear 44: and this gear meshes with-the worm portion 45 of a shaft 46 which shaft carries at its inner end or in other words that end adjacent the shaft 15, a bevel pinion 47 which is at all times in mesh with both of the gears 17 and 18. The frame 42 is formed at its intermediate portion with an extension or auxiliary frame 48. the connecting portion of which frame is indicated by the numeral 49 and is formed A reciprocatory frame including side portions 56 and a connecting portion 57, which connecting portion is dove-tailed in cross section and is seated for sliding or reciprocatory movement in the groove 51 in the said connecting portion 49 of the auxiliary frame 48, has the ends of its side portions 56 of yoke formation indicated by the numeral 58 and engaged in the groove 36 in the collar extensions of the heads 31, the heads being held in this manner in such relation one with respect to the other that when one head is moved so as to bring the respective frictional shoes 27 into frictional contact with the corresponding flange 21 or 23, the other head is out of position to accomplish such a result.

A latch 55) is pivoted as at 6Q upon the connecting portion 57 of the frame lust described and this latch is designed to be engaged normally in a notch or sent 61 formed in a boss (32 upon the upper face of -thc bur 52 so as to connect the reciproeatory frame last described with the said bar for movement in unison therewith it being understood that the heads 3l are in this manner shifted so as to alternately bring the correspmiding set of friction shoes 27 into contact with the corresponding flanges 21 or 2 3. When it is desired to discontinue this operation of the mechanism, the latch 5!) may he swung out of engagement with the notch (31 and may be dropped into one gagcment with a similar notch 63 formed in a boss (3-1 upon the upper face of the connecting portion 57 of the rcciprocatory frame.

From the foregoing description of my invention, it will be underst od that there is a continuous rotation of the disk 20 and its associated gear 17 and that this rotation of of the shaft will result in rotation of the ,worm gear 44 and reciprocation of the bar 52. As heretofore stated, reciprocatihm of tlus bar 52 imparts a corresponding movement to the reciprocatory frame of the necl'iin one direction thereby rotating the rumble in a like direction, and that when the other set of friction shoes 27 is in frictional engageinent with the flange 23-, the disk 22 and its associated bevel gear 18 will be clutched "with the shaft 15, and the said shaft will be rotated in an opposite direction thereby reversing the direction of rotation of the rumble. It will further be understood, that inasmueh as the grooves 32 are, for one-half of their length, extended in a line parallel with the shaft 15, one gear 17 or 18 will be absolutely free for rotation independently of the sliaft15 while the shaft is being rotated by the other one of the twogears mentioned.

\Vhat is claimed is 1; In a mechanism of the class described, a shaft, clutch elements loosely mounted on the shaft, "clutch elements mounted upon the shaft for rotation therewith and for cooperation with the first-mentioned elements, and

'means for "alternately bringing the secondmentioned clutch elements into engagement with the corresponding first-ment oned elements, said means comprising a gear driven from one of the first-inentioi'iod clutch. ole-- ments, a sliding oar having a slotted extension, :1 pin upon the gear working in the '-lot in said extension, a i'uzipi'oinitory frame having extensions o oi'atively connected with secondincntioneil clutch elements, and a pivoted latch carried by the fran-ie and 'engageable with the bar whereby to connect the frame with the bar for reciprocation,

In mechanism of the classdcsci'ihed, a shaft, clutch elements loosely mounted on the shaft, clutch elements mounted upon the shaft for i'otati'on therewith, and for cooperation with the first-mentioned elements,

and means for alternately bringing the second-mentioned clutch elements into engagenieint with the corresponding first-mentioned elements, said means comprising a sliding bar, gear connections between one of, the first-mentioned clutch elements and the bar for -geciprocating the bar, a'reeiprocatory frame having ensions operatively connected with th .,econd-mentioned clutch elements, and a pivoted latch carried by the frame and engaigable with the bar who by to, connect the frame with the bar for reciprocation.

3. In mechanism of the class described, a shaft, clutch elements loosely mounted upoi -the shaft, clutch elements mounted upon the.

shaft for rotationtherewith and for cooperation with the first-mentioned elements, and means for alternately bringing the secondinentioned clutch elements into engagement with the corresponding first-mentioned elements, said means comprising a fixed support, a gear moupted to rotate upon the support, a sliding bar having an extension operatively connected with the gear, a reciprocatory frame mounted upon the support and having extensions operatively connected with the second-mentioned clutch elements, and a latch pivoted upon the reciprocatory frame and enga eable with the bar whereby to connect the ame for reciprocation with the bar, saidlatch being enga eable also with the support whereby to 1101 the frame against reciprocation.

4. In mechanism of the class described, a shaft, clutch elements loosely mounted on the shaft, clutch elements mounted upon the shaft for rotationtherewith and for cooperation with the first-mentioned elements, and

port and driven from the first-mentioned ,Cllliliill elements, a sliding bar having a slot ted extension, a pin upon the gear working in the slotmt said extension, spaced lugs upon the bar, a rcciprocatory frame having extensions opci'atively connected with the second-nientioiied clutch elements, spaced lugs upon the fixed support, and a latch pivoted upon the fi'an'ie and engageable between the lugs upon the bar to connect the frame with the bar for i'eciprocatioi'i and engageahlc also between. the lugs upon the support to hold-the fran'ie against reciprocation.

in testimony thahi claim the foregoing as my own, l have hereto allixed my signature in the 'oresei'ice of two witnesses.

1 CHARLES KlliROY. Witnesses:- p

D. B." Garry, MAUnion FLANJGAN. 

